Learn Sudoku with a Real Coach

Coach-style hints, 38 solving techniques, 10,000+ offline puzzles, and photo import — free to play in your browser.

Play Sudoku Online How to Play Techniques
Example Sudoku puzzle from PlaySudoku 5 3 6 9 2 1 9 5 3 8 8 4 5 7 8 5 6 1 4 2 3 2 3 9 1 9 2 8 6 9 6 5 2 4 2 8 7 4 3 4 5 2 7
Coach-style hintsStep-by-step guidance that teaches techniques, not just answers.
38 techniquesFrom Naked Single to Forcing Chain — structured lessons with practice tips.
10,000+ offline puzzlesPlay anytime without an account. Progress stays on your device.
Photo importSnap a paper puzzle and continue solving digitally.

Learn the techniques

Browse every lesson, then jump into the app to practice on real puzzles.

Beginner

Intermediate

Advanced

See all 27 Advanced techniques →

Expert

Full technique index

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